Multi-arm Trial of Inflammatory Signal Inhibitors (MATIS) for hospitalised patients with mild or moderate COVID-19 pneumonia: a structured summary of a study protocol for a randomised controlled trial. - Vergis, Nikhil; Phillips, Rachel; Cornelius, Victoria; Katsarou, Alexia; Youngstein, Taryn; Cook, Lucy; Willicombe, Michelle; Pilay, Clio; Shturova, Tina; Almonte, Melanie; Charania, Asad; Turner, Richard; et al. (Trials, 2021)